Heavy Duty Stainless Steel Flat Bar is a thick and strong flat bar designed for demanding industrial and structural applications, offering excellent corrosion resistance and mechanical strength. It is widely used in construction, heavy machinery, industrial equipment, and structural frameworks.
Material Type :
Heavy Duty Stainless Steel (304 / 316L / 2205)Width Range :
20mm – 400mmThickness Range :
10mm – 60mmCustomizable :
YesOrder(MOQ) :
2TSpecifications
Heavy duty stainless steel flat bars are manufactured from high-quality stainless steel grades such as 304, 316, and other alloy steels, providing excellent durability, resistance to corrosion, and long-term performance in harsh industrial environments.
These flat bars feature increased thickness and high load-bearing capacity, making them ideal for applications that require mechanical strength and stability under heavy loads. They can also be processed through cutting, welding, and machining as needed.
Heavy duty stainless steel flat bars are widely used in industrial machinery, construction frameworks, structural supports, fabrication projects, and engineering applications, where strength, reliability, and material performance are critical.
Heavy Duty Stainless Steel Flat Bar is one of our core strength products. We maintain substantial inventory to ensure rapid delivery and can also customize extra-large diameter seamless pipes according to your specific requirements. Additionally, we provide comprehensive services including spectroscopic analysis, mechanical property testing, pressure testing, and non-destructive testing (NDT).
| Grade | Grade Equivalent | Mechanical Properties | Size Range | Chemical Composition (Typical, %) |
|---|---|---|---|---|
| 304 | UNS S30400
|
Tensile ≥515 MPa
|
Thk 20–100 mm
|
C≤0.08, Cr 18.0–20.0
|
| 304L | UNS S30403
|
Tensile ≥485 MPa
|
Thk 20–100 mm
|
C≤0.03, Cr 18.0–20.0
|
| 316 | UNS S31600
|
Tensile ≥515 MPa
|
Thk 20–100 mm
|
C≤0.08, Cr 16.0–18.5
|
| 316L | UNS S31603
|
Tensile ≥485 MPa
|
Thk 20–100 mm
|
C≤0.03, Cr 16.0–18.5
|
| 321 | UNS S32100
|
Tensile ≥515 MPa
|
Thk 25–100 mm
|
C≤0.08, Cr 17.0–19.0
|
| 310S | UNS S31008
|
Tensile ≥515 MPa
|
Thk 30–100 mm
|
C≤0.08, Cr 24.0–26.0
|
| 2205 Duplex | UNS S32205
|
Tensile ≥655 MPa
|
Thk 20–100 mm
|
C≤0.03, Cr 22.0–23.0
|
| 2507 Super Duplex | UNS S32750
|
Tensile ≥800 MPa
|
Thk 25–100 mm
|
C≤0.03, Cr 24.0–26.0
|
| 904L | UNS N08904
|
Tensile ≥490 MPa
|
Thk 25–100 mm
|
C≤0.02, Cr 19.0–23.0
|
|
Note: If you do not find a Heavy Duty Stainless Steel Flat Bar that meets your requirements or is suitable for your customer’s project, please contact our manager sales consultant (Email: stsalesman4@stmetal001.com) and send us your specifications and technical parameter files to obtain Customized quotation plan. |
Video
Factory
FAQs
Q: What types and standards of stainless steel do you mainly supply?
A: We mainly supply a wide range of stainless steel products including stainless steel pipes/tubes (seamless and welded), plates, coils, strips, and bars. Common grades include 304/L, 316/L, 321, 310, 410, 430, 2205 (Duplex), and 904L, which are widely used in construction, chemical processing, food equipment, and marine engineering. All stainless steel products comply with international standards such as ASTM, JIS, and EN. We can also provide corresponding material test certificates (MTC) and support customized specifications according to customer project requirements.
Q: Can you provide special specifications or non-standard customization? For example, extra-wide plates or pipes with specific wall thicknesses?
A: Of course. One of our advantages is our flexible customization capabilities. We can provide customized size cutting, special thicknesses, and special surface treatments (such as 2B, BA, No.4 brushed finish, mirror finish) based on your drawings or requirements. Whether it's a small trial order or a large-volume purchase, we can meet your needs.
Q: How do you guarantee the quality and consistency of materials? Do you have quality certifications?
A: Quality is our lifeline. We use direct supply from large steel mills to ensure material traceability. Each shipment comes with a Material Quality Certificate (MTC). We have our own quality control team that conducts random checks on material composition, dimensional tolerances, surface finish, and mechanical properties. Our factory is also ISO 9001:2015 quality management system certified.
Q: What are your delivery times and logistics solutions for overseas customers?
A: For standard-specification in-stock products, we can complete preparation and shipment within 7-14 days. Delivery times for customized products will be determined through negotiation based on the specific process. We have established international logistics partners who can arrange full container load (FCL), less-than-container load (LCL), or air freight according to your needs, and provide various trade terms such as EXW, FOB, CIF, and DDP, with door-to-door service.
Q: As a new customer, how do I begin cooperation? Can you provide samples for testing?
A: The cooperation process is very smooth: 1) You provide specific requirements (brand, specifications, quantity, standards); 2) We provide a quotation and technical advice; 3) After confirmation, we arrange the contract and payment; 4) Production/pickup and quality inspection; 5) Shipment and provision of documentation. We encourage sample testing. For serious customers, we can provide small-size samples to ensure that the materials fully meet your processing and application requirements.
|
Note: If you do not find a Heavy Duty Stainless Steel Flat Bar that meets your requirements or is suitable for your customer’s project, please contact our manager sales consultant (Email: stsalesman4@stmetal001.com) and send us your specifications and technical parameter files to obtain Customized quotation plan. |
Industrial Stainless Steel Flat Bar is manufactured from high-quality stainless steel with excellent corrosion resistance, structural strength, and durability. It is widely used in construction structures, industrial equipment, machinery manufacturing, and fabrication projects requiring reliable performance and long service life.
Details
Precision Stainless Steel Flat Bar is a high-accuracy flat steel product designed for precision engineering and industrial applications, offering excellent corrosion resistance and dimensional stability. It is widely used in machinery, automotive components, construction, and fabrication projects.
Details
Cold Rolled Stainless Steel Flat Bar is a precision flat bar produced through cold rolling, offering excellent surface finish, dimensional accuracy, and corrosion resistance. It is widely used in machinery, construction, automotive components, and industrial fabrication.
Details
Polished Stainless Steel Flat Bar is a high-quality flat bar with a smooth, polished surface, offering excellent corrosion resistance and an attractive finish. It is widely used in architectural applications, furniture, interior design, and industrial equipment.
Details
Heavy Duty Stainless Steel Flat Bar is a thick and strong flat bar designed for demanding industrial and structural applications, offering excellent corrosion resistance and mechanical strength. It is widely used in construction, heavy machinery, industrial equipment, and structural frameworks.
Details
Custom Size Stainless Steel Flat Bar is manufactured according to specific dimensional requirements, providing flexibility and reliable performance for various industrial and structural applications. It is widely used in machinery, construction, fabrication projects, and engineering applications.
Details
Request A Quote
Scan to Wechat/Whatsapp :
